It is very often the case that carriers within the same alliance due not publish cancellations of schedules simultaneously. Also the processing of the data might take different amounts of time in our data base. This might lead to the fact that sailings within the same service pool are marked differently, even though it is physically the same vessel. In this case we have detected no schedule or a blank sailing for one of the carriers within the service pool, it is likely that the same information will follow later for the other involved carriers.